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Session Report

Summary:
Test run at: 2021-07-09 19:28:53 GMT
Client Prefix (v4): 45.165.178.x/24
Client AS (v4): 263067
IPv4 Probes: 66
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable received
Largest spoofable neighbor prefix length none
Spoof status key
receivedSpoofed packet was received.Pattern of tests from this IP block indicates a switch from allowing spoofing to blocking it.
rewrittenSpoofed packet was received, but the source address was changed en route.
blockedSpoofed packet was not received, but unspoofed packet was.
unknownNeither spoofed nor unspoofed packet was received.

Warnings:

IPv4 Adjacent Netblock Testing:

Your host (45.165.178.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
45.165.178.x/24/31263067rewritten
45.165.178.x/24/30263067rewritten
45.165.178.x/24/29263067rewritten
45.165.178.x/24/28263067rewritten
45.165.178.x/24/27263067rewritten
45.165.178.x/24/26263067rewritten
45.165.178.x/24/25263067rewritten
45.165.178.x/24/24263067rewritten
45.165.179.x/24/23263067rewritten
45.165.176.x/24/22263067rewritten
45.165.182.x/24/21268694rewritten
45.165.186.x/24/20268695rewritten
45.165.162.x/24/19267961rewritten
45.165.146.x/24/18268682rewritten
45.165.242.x/24/17267980rewritten
45.165.50.x/24/16268657rewritten
45.164.178.x/24/15268645rewritten
45.167.178.x/24/14268021rewritten
45.161.178.x/24/13268470rewritten
45.173.178.x/24/12268818rewritten
45.181.178.x/24/11269189rewritten
45.133.178.x/24/1026388rewritten
45.229.178.x/24/9267131rewritten
45.37.178.x/24/811426rewritten

Meaning of status in Received column:

rewrittenThe source address of the probe packets we received differs from the spoofed address. It appears that an intermediate device is rewriting your packet headers.

IPv4 Outbound Filtering Depth:

The tracefilter test found your host able to spoof routable, non-adjacent source addresses through the first 10 IP hop(s).
Summary:
The results from all tests are aggregated to produce a summary "State of IP Spoofing" report.
Feedback:
We welcome questions and feedback to the Spoofer Information Mailing List and invite users to join the Spoofer Users Mailing List for discussion and announcements.
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